Australian fine wine maker Penfolds this week unveiled what it says is the world's most expensive bottle of wine.

The 2004 Kalimna Block 42 Cabernet Sauvignon, that the vineyard claims are from the oldest continuously producing vines in the world, will set you back $168,000 and comes completely encased in a futurist-looking, glass ampoule with no cork or screwcap.

The hand-blown glass vial, which holds about the same as a bottle of wine, is designed to preserve the pricey grapes, and is suspended within a wooden jarrah cabinet.

When owners want it opened Penfolds will send a senior winemaker to wherever they are in the world, the company said.

Only 12 ampoules will be available for sale, which has something to do with its hefty price tag. How it tastes is something left the beholder. But you'll likely have to be a billionaire to find out.